Assertion (A): When electrons drift in a conductor, it does not mean that all free…
Physics · Class 12 · CBSE — Current Electricity
Assertion (A): When electrons drift in a conductor, it does not mean that all free electrons in the conductor are moving in the same direction.
Reason (R): The drift velocity is superposed over large random velocities of electrons.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
(A) Both A and R are true and R is the correct explanation of A.
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A wire of resistance 10 is elongated by 10%. The resistance of the elongated wire is:
- Which pair of readings of ideal voltmeter and ideal ammeter in the given circuit is possible when a suitable…
- The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 is:
- Six identical cells, each of emf of 6 V, are connected in parallel. The net emf across the battery is:
- An electric bulb o f 500 watt at 100 volt is used in a circuit having a 200 V supply. Calculate the…
- For a cell, the terminal difference is 2.2 V, when the circuit is open and reduces to 1.8 V, when cell is…
- At 1000°C the resistance of a wire is found to be four times its resistance at 0°C. The temperature…
- Assertion (A): The current density ( J ) at a point in a conducting wire is in the direction of electric…
More Current Electricity questions · Browse all practice questions